The most intelligent part of your post is when you misspelled metastasizing. I agree with giant 100% . If your dog of EIGHT years is sick do whatever you can do to help your dog.
What is your financial situation? Seriously no forum ego Bull***t. Is 1000 or 1500 a huge amount of money to you? If it is I understand its a tough spot because people have responsibilities they have to meet. If it is not you really have to do the right thing my man.